A New Varying Cipher for Symmetric Key Cryptosystems

Data encryption is one of the widely used methodologies to ensure the data confidentiality in cloud environment. Most of the proposed methods which generate cryptographic algorithms are weak, and slow. Another important problem in the proposed methods is to replace bits which lead to improvement in the performance of cryptographic algorithms. Chosenplaintext, chosen- cipher text attacks on symmetric-key encryption schemes giving adversary actions to predict the original message or the key